python利用itertools生成密码字典并多线程撞库破解rar密码

#!/usr/bin/env python# -*- coding: UTF-8 -*-# Author:Leslie-ximport itertools as itsimport threadingimport rarfileimport oswords = '0123456789abcdefghijklmnopqrstuvwxyz' # 涉及到生成密码的参数flag = True # 是否关闭线程的标志def append_on_file(password,file_name):  # 把解析出的密码写入到文件中  with open('password.txt', 'a', encoding='utf8') as f:    text = file_name+':'+password + '/n'    f.write(text)def get_password(min_digits, max_digits, words):  """  :param min_digits: 密码最小长度  :param max_digits: 密码最大长度  :param words: 密码可能涉及的字符  :return: 密码生成器  """  while min_digits <= max_digits:    pwds = its.product(words, repeat=min_digits)    for pwd in pwds:      yield ''.join(pwd)    min_digits += 1def extract(File,file_name):  """  若线程关闭标志为True，就执行循环，从密码生成器中取出密码，验证密码是否正确  密码正确，则把密码写入文件中，并将线程关闭标志flag设定为False,通知其他线程关闭  """  global flag  while flag:    p = next(passwords)    try:      File.extractall(pwd=p) # 打开压缩文件,提供密码...      flag = False      print("password is " + p) ###破解到密码      append_on_file(p,file_name)      break    except:      print(p)def mainStep(file_path,file_name):  """  多线程并发验证密码  :param file_path: rar压缩文件路径列表  :return:  """  file = rarfile.RarFile(file_path)  for pwd in range(3):    t = threading.Thread(target=extract, args=(file,file_name))    t.start()if __name__ == '__main__':  # 主程序  base_dir = r'E:/迅雷下载/rar'  for file_info in os.listdir(base_dir):    try:      # 拼接压缩文件路径      file_path = os.path.join(base_dir, file_info)      # 压缩文件名称      file_name = file_info.split('.')[0]      # 生成密码字典：密码长度最小为4，最大为11      passwords = get_password(4, 11, words)      # 将任务分发给线程执行      mainStep(file_path,file_name)    except:      pass